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		<title>作业_3</title>
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			<caption>课程表</caption>
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				<tr>
					<td colspan="2" rowspan="2"></td>
					<td rowspan="2">星期一</td>
					<td rowspan="2">星期二</td>
					<td rowspan="2">星期三</td>
					<td rowspan="2">星期四</td>
					<td rowspan="2">星期五</td>
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			</thead>
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				<tr>		
					<td rowspan="2">上午</td>
					<td>1</td>
					<td>语文</td>
					<td>数学</td>
					<td>物理</td>
					<td>化学</td>
					<td>生物</td>
				<tr>					
					<td>2</td>
					<td>生物</td>
					<td>数学</td>
					<td>语文</td>
					<td>化学</td>
					<td>物理</td>		
				</tr>
				<tr>		
					<td rowspan="2">下午</td>
					<td>1</td>
					<td>语文</td>
					<td>化学</td>
					<td>物理</td>
					<td>生物</td>
					<td>数学</td>
				<tr>					
					<td>2</td>
					<td>生物</td>
					<td>化学</td>
					<td>数学</td>
					<td>语文</td>
					<td>物理</td>		
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